Wolf Lichen
Letharia vulpina
Synonym: Evernia vulpina
Wolf lichen growing on the bark of a bull pine (Pinus ponderosa) as seen in mixed pine and oak forest along Horseshoe Bend Road about three and one-half miles east of the Klickitat River, Klickitat County, Washington........March 31, 2012.
Wolf lichen growing on the bark of an Oregon white oak (Quercus garryana) as seen along the Memaloose Trail south of Old Highway 30 and approximately several hundred yards east of Chatfield Hill, Columbia River Gorge National Scenic Area.........February 17, 2013.
Paul Slichter